DTIC ADA068722: Plasma ARC Welding of High pdf

DTIC ADA068722: Plasma ARC Welding of High

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The plasma arc welding process has been evaluated for use in the fabrication of high-performance-ship materials, which include HY steels, PH stainless steels, and titanium and aluminum alloys. Welding parameters and mechanical properties of plasma arc keyhole mode welds in varying thicknesses were determined for the above materials. Additional information was generated through an evaluation of the commercial practice of plasma arc welding. It was found that this type of welding is a viable fabrication technique for the intended application. The materials of interest can be welded from one side in one or two passes in thicknesses of 1/2-in. (12.5-mm) or less with less distortion than conventional arc welding processes. Filler metal consumption is minimal, mechanical properties are satisfactory, and required operator skill levels are not exceptionally high. The highly cost effective plasma arc welding process could be implemented with existing technology in the fabrication of high-performance-ship materials

• Creator/s: Defense Technical Information Center
• Date: 5/1/1979
• Year: 1979
• Book Topics/Themes: DTIC Archive, McCaw, Robert L., DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD SHIP MATERIALS ENGINEERING DEPT, *PLASMA ARC WELDING, *SHIP STRUCTURAL COMPONENTS, MECHANICAL PROPERTIES, ALUMINUM ALLOYS, FABRICATION, STAINLESS STEEL, STEEL, HOLES(OPENINGS), STRENGTH WEIGHT RATIO, SURFACE EFFECT SHIPS, TITANIUM ALLOYS, FILLERS, HYDROFOILS

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